Paramphistomidae Flashcards
Paramphistomidae is parasite of
Fish, amphibia, reptiles, birds, mammals
From Greek word
Para-besides
Amphi- two at both sides
Stoma- mouth
What flukes
Stomach fluke
-Body is thick, circular in transverse sections
-Ventral sucker located at or close to posterior extremity & usually strongly developed
-Pharynx absent, esophagus present & intestinal caeca simple, testes frequently lobed & anterior to the ovary
Paramphistomidae
Egg of rumen fluke paramphistome compared to fasciola
Fasciola- golden yellow/brown
Paramphistome- clear
Amphistomes of ruminants in the Philippines
Fischoederius elongatus
F. Cobboldi
Paramphistomum cervi
Carmyerius synethes
Gastrothylax crumenifer
Velasquezotrema brevisaccus
Calicophoron calicophorum
Gigantocotyle formosanum
Explanatum explanatum
Orthocoelium orthocoelium
Miracidia develops inside the _____ liberated & swim in surrounding water to _______
-egg, penetrate suitable snail IH )Gyraulus convexiusculus)
Larval stages in snail
-rediae, duaghter rediae, cercariae
Larval stages in snail
-rediae, duaghter rediae, cercariae
____ are shed from snail IH during _____ and ____ on herbage as ____. Infection of final host is by ———-
-Cercariae
-daylight hours
-encyst
-metacercariae
-ingestion of metacercariae in herbage
Tx
Same sa fasciolosis
No clinical signs of amphistome infection, clinical signs attributed to fasiola in mixed infections
True
____ in the jejunum of final host,
Migrate towards the _____
Pathological effects of infection are caused by the ________
-excyst
-rumen
-immature stages within small intestine
Prepatent period
48-95 days
